A matrix is singular if:

A Its determinant is 1

B Its determinant is 0 (non-invertible)

C It is symmetric

D It is diagonal

✓ Correct Answer: Option B

Singular matrix: det = 0, no inverse exists, columns are linearly dependent.

💡 Why is B) the correct answer?

The correct answer to the question "A matrix is singular if:" is Option B: Its determinant is 0 (non-invertible).

The other options — A) Its determinant is 1, C) It is symmetric, D) It is diagonal — are incorrect for this FE Exam Prep question. As explained above: Singular matrix: det = 0, no inverse exists, columns are linearly dependent.

📚 About This FE Exam Prep Practice Question

This 2-level FE Exam Prep question from the Mathematics topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free FE Exam Prep practice test or use flashcards for spaced repetition review.

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A matrix is singular if:

✓ Correct Answer: Option B

📚 About This FE Exam Prep Practice Question

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